General Tools IRT670 User Manual [en, es, fr]

IRT670

USER’S MANUAL

High Performance 30:1, Wide-range
Infrared Thermometer with Memory

INTRODUCTION:

Thank you for purchasing this Infrared Thermometer. This is a non-contact infrared temperature measuring instrument. To
measure a temperature, point the unit at the desired object, pull the measuring trigger and hold. Make sure the target area is
larger than the unit’s spot size. For larger target objects, you must be within the target distance.

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Features include broad temperature and high DS ratio. This
allows the user to monitor the target from a long distance;

far away from potential risk.

FEATURES:

• High DS ratio

• Adjustable emissivity from 0.1 to 1.00 in 0.01 steps

• Ultra low power consumption in shutdown mode

• Extended long time measuring reliability

• Laser sighting On/Off is switchable

• Backlit LCD display

• °F or °C selectable

• Electronic trigger lock

• Temperature data storage

• Audible alarms

APPLICATIONS:

• Manufacturing processes of semiconductor technology

• Automotive repair and maintenance

• Food safety and processing

• HVAC energy audits

• Electrical troubleshooting

• Testing terminals on circuits

• Scientific experiment

• Air conditioning

SAFETY INFORMATION:

Read the following safety information carefully before
attempting to operate or service the meter. Only qualified
personnel should perform repairs or services

not covered in this manual.

LASER WARNING NOTE!

Do not point laser directly at eyes.
Use caution around reflective surfaces.

Keep out of reach of children!

CAUTIONS!

DO NOT submerge the unit in the water.
This product is not designed for use in medical evaluations.
The product can only be used to measure body temperature

for reference. It is meant for industrial and scientific
purposes.

SAFETY SYMBOLS

Dangerous, refer to this manual before using the
meter.

CE Certification

This instrument conforms to the following standards:
EN61326: Electrical equipment for measurement, control and

laboratory use.

IEC61000-4-2: Electrostatic discharge immunity test.
IEC61000-4-3: Radiated, radio-frequency, Electromagnetic

field immunity test.

IEC61000-4-8: Power frequency magnetic field immunity

test.

Tests were conducted using a frequency range of 80­1000MHz with the instrument in three orientations.

The average error for the three orientations is ±1.0 °F
(±0.5 °C) at 3V/m throughout the spectrum. However,

between 781-1000MHz at 3V/m, the instrument may not
meet its stated accuracy.

The device may not be disposed in the trash. It

promotes the re-use recycling and other forms of
recovery of used materials and components, and to
improve the environmental performance of all operators
(manufacturers, traders, treatment facilities) involved in the
life cycle of products. Dispose of the product appropriately
in accordance with relevant regulations.

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Display
Screen

Control Panel

Laser Sighting

Measuring

Window

Measuring

Trigger

Battery and

Cover

SPECIFICATIONS:

Distance/Spot Ratio: 30:1
Temperature Range: -25.6° to 1400°F (-32° to 760°C)
Accuracy: ±5°F (±3°C) within -25.6° to -4°F (-32° to -20°C)

±3°F (±2°C) within -4° to 212°F (-20° to 100°C)

±2% within 212° to 1400°F (100° to 760°C)
Thermopile: 8 ~ 14µm
Repeatability: ±2°F (±1°C)
Resolution: 0.1°F (0.1°C)
Response Time: 500 ms.
Operating Temperature: 32° to 122°F (0° to 50°C),

10 to 90%RH
Auto Power Off: Automatically after approx. 6 seconds
Emissivity: Adjustable 0.1 ~ 1.0
°F/°C Switchable: YES
Backlight: YES
Laser Sight Switchable: YES
Audible alarm: YES
Max/Min/Avg/ΔT: YES
Auto Measuring: YES
10 Point Memory: YES
Dual Display: YES
Tripod Mount: YES
Dimensions: 7.8" x 6.5" x 2" (200 x 166 x 51mm)
Battery Type: “9V” battery
Weight: 10.6 oz. (300 g) Approx.
Accessory: “9V” battery, Instruction Manual,

Soft Carrying Case

OPERATIONS OF INSTRUMENT

QUICK START:

To measure a temperature, point the unit at the target that
you want to measure, pull themeasuring trigger and hold.
Be sure to consider the target area that is inside the angle of
vision of this instrument. The single spot of laser is used for
aiming only

UNIT DIAGRAM:

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1. Laser/Buzzer On/Off

2. Low Battery

3. Data Log

4. ΔT/Emissivity

5. High/Low Alarm

6. Memory Key

7. Down Button

8. SCAN/HOLD/AUTO

9. °F/°C Indication

10. Main Temperature
Display

11. Max/Min/Avg

12. Set/Record Value

13. Lock Key

14. Mode Key

15. Up Button

Parameter Setup Mode

• Scan and display the
temperature during
measurement

• The maximum temperature
within one shot measuring

• The minimum temperature
within one shot measuring

• The average temperature
within one shot measuring

• The highest and lowest
temperature difference within
one shot measuring

• Recall the stored data by
using ▲ or ▼ button

• Emissivity for more accuracy
on different materials

• Highest alarm temperature
setting

• Lowest alarm temperature
setting

(*The parameters are

adjusted by using
▲ or ▼ buttons)

LCD AND CONTROL PANEL: OPERATION FUNCTIONS:

To operate the advanced functions of the unit, press the
MODE button to change the functions. The sequential
operations and the corresponding explanations are shown
in the following chart.

OPERATION MODE

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OPERATION REMARKS:

• Memory: Activate the record function by pushing the “M”

button. To delete all the records, press the up or down
button to DATA0 and then press the “M” button.

• LOCK: Push the button to continuously measure and

display the temperature without pulling the measuring
trigger.

• The above functions can always be activated by following
any of the steps of the Operations Mode in the flow chart.

• In SCAN mode, the LCD display both the current
temperature in Celsius or Fahrenheit. The unit will HOLD
the last reading for 30 seconds after the trigger is
released. When the battery is low, the battery icon will
display, but the unit will continue to function.

• While DATA# flashes on the left bottom, the value on the
Main Temperature Display can be recorded in “#” log.
Simply press the “M” button.

°F/°C AND BATTERY CHANGE:

The unit is powered by
“9V” battery and displays
temperature in either °F/°C.
The user has to replace the
battery when the battery
voltage drops below the
voltage for reliable
operation and at the same
time the low battery
symbol will appear. To
change the “9V” battery,
pull and open the unit’s
handle by using the finger.
Change the “9V” battery
with a new one and push
the battery cover back in
place.

TECHNIQUES OF INFRARED THERMOMETER:

FIELD OF VIEW (FOV) RATIO =
DISTANCE TO DIAMETER (DS) RATIO

The field of view is the angle of vision at which the
instrument operates and it is determined by the optics of the
unit. The FOV is the ratio of the distance from the target to
the target diameter. The smaller the target, the closer you
should be to it. When the target diameter is small, it is
important to bring the thermometer closer to the target to
insure that only the target is measured, excluding the
surroundings.

EMISSIVITY:

Emissivity is the ability of an object to omit or absorb energy.
Perfect emitters have an emissivity of 1, emitting 100% of
incident energy.

An object with an emissivity of 0.8 will absorb 80% and
reflect 20% of the incident energy. Emissivity is defined as
the ratio of the energy radiated by an object at a given
temperature to the energy emitted by a perfect radiator at
the same temperature. All values of emissivity fall between

0.0 and 1.0.
Non-contact temperature sensors measure IR energy emitted

by the target, have fast response, and are commonly used to
measure moving and intermittent targets,targets in a
vacuum, and targets that inaccessible due to hostile
environments, geometry limitations, or safety hazard.

The cost is relatively higher, although in some cases it is
comparable to contact devises.

°F/°C switchable

Laser On/Off

“9V” battery

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